OK, so my tank is roughly 6 months old now and is overrun with algae. I've got red slime, I've got green hair... I had some high nitrates a week or 2 ago but they are down to 15 ppm now. Took a water sample to the LFS and they informed me that my phosphates are high (like .5). Their recommendation was to use a phosphate "sponge" to decrease that, do a water change again (or a couple) to continue to aid in that and lower the nitrates further. Also, suggested that I quite feeding flake food as this just gets caught in the filter and rots, increasing nitrates and phosphates. This all sound on the up and up to you guys, or would you all suggest other action or additional action? Since my tank is not yet a full year (the magical number), wasn't sure if I should just assume this is the "natural" algae progression too. Any help would be greatly appreciated! Thanks in advance!